Horseshoe-forming machine.



S. M. CRONE.

HORSESHOE FORMING MACHINE.

APPLICATION FILED MARA. 1911.

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Patented June 3, 1913.

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HORSESHOE FORMING MACHINE.

APPLICATION FILED MAR.4, 1911.

S. M. ORONE.

HORSESHOE FORMING MACHINE.

APPLICATION FILED MAR.4, 1911.

Patented June 3, 1913.

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S. M. CRONE.

HORSBSHOE FORMING MACHINE.

APPLICATION FILED HARM 1911. 1,063,779.

UNITED STATES PATENT OFFICE.

STANLEY MARTIN CRONE, OF FULLERTON, PENNSYLVANIA.

HORSESHOE-FORMING MACHINE.

To all whom it may concern:

Be it known that I, STANLEY M. CRoNE, a citizen of the United States,residing at Fullerton, in the county of Lehigh and State ofPennsylvania, have invented new and useful Improvements inHorseshoe-Forming Machines, of which the following is a Specification.

The invention is primarily designed to rovide a machine for forminghorseshoes from blanks or billets cut from a bar of metal, said billetsor blanks being acted upon by successive steps in a single organizedmachine to form a complete horseshoe, the latter having its heelportions reduced in width and gradually thickened in depth and havingthe usual nail grooves, or creases, and nail openings.

It is to be understood that the invention may be adapted to metalworking machines designed for bending and pressing Work to obtain agiven lesult, the present invention contemplating a machine embodyingbending devices and pressing mechanism so that the blank may be giventhe required shape at one heating and the cost incident to handling andreheating overcome, since the machine embodies means for automaticallytransferring the work from the bending mechanism to the pressingmechanism, and means for automatically removing the completed articlefrom the pressing mechanism, the several steps being performed insuccession without requiring any intermediate handling or reheating.

The invention consists of the novel features, details of constructionand combination of parts, which hereinafter will be more particularlyset forth, illustrated in the accompanying drawings, and pointed out inthe appended claims.

Referring to the drawings, forminga part of the application, Figure 1 isa Side view of a metal working machine embodying the invention. Fig. 2is a top plan view thereof. Fig. 3 is a transverse section on the line00-0a of Fig. 1, looking in the direction of the arrows. Fig. 4 is atransverse section on the line y 1 of Fig. 1, looking to the left, asindicated by the arrows. Fig. 5 is a central longitudinal section on theline z z of Fig. 2.

Corresponding and like parts are referred to in the followingdescription, and indi- Specification of Letters Patent.

Application filed March 4, 1911.

Patented June 3,1913.

Serial No. 612,282.

cated in all the views of the drawings, by the same referencecharacters.

The frame work comprises a bed piece A, a supporting structure 0 anduprights B at one end of the bed piece A. A shaft D is located near oneend of the frame and is mounted in suitable bearings and is adapted tobe driven from a suitable source of power. Pinions D are secured toopposite end portions of the shaft D and mesh with gear wheels E securedto end portions of a shaft E mounted upon the framework and arrangedparallel with the shaft D. A bevel pinion D is likewise secured to theshaft D and meshes with a bevel pinion J secured to the lower end of ashaft J, which is located at one side of the framework and inclinesupwardly and rearwardly and has a bevel pinion J at its upper endmeshing with a bevel gear L secured at one end to a transverse shaft Lmounted in bearing at the upper ends of the uprights B. A shaft F,mounted upon the framework parallel with the shafts D and E, has a gearwheel F eccentrically mounted thereon and in mesh with an eccentric gearwheel E secured to the shaft E. The eccentric gears F and E are disposedso as to produce a varying degree of force or power during the bendingoperation. Crank wheels F are secured to opposite ends of the shaft Fand pitmen F connect the same to opposite ends of a bar G which isbolted or otherwise secured to a cross head G arranged to slide inguides A provided upon the bed A. A former G is connected to the crosshead G by means of a bar G A double cam G is adjustably connected to thecross head G to move therewith and is adapted to be pressed between theforward ends of a pair of shap ing levers H pivoted at H to the bed A. Aspring H of the helical type normally eX erts a pressure to draw theforward ends of the levers H inward. The shaping levers H extendlongitudinally of the machine and their forward ends are made thickerthan the rear ends, both ends of the levers being provided with rollersso as to reduce the frictional resistance to the smallest amountpossible. Fixed dies I are located upon opposite sides of the former Gand aline transversely. Movable dies E are arranged to cooperate withthe fixed dies 1, the movable dies consisting of levers arrangedvertically and mounted upon a transverse shaft E. Pendent levers E arelocated at the front end of the machine and are pivotally supported at Eand are connected by means of rods or bars E to the lower ends of thepivoted levers E the upper ends of which constitute the movable diesadapted to cooperate with the fixed dies I. In the operation of themachine the lower ends of the pendent levers E are pressed forward bymeans of cams E secured to the shaft E, said cams having rollers attheir outer ends to reduce the friction and wear to the smallest amountpossible. Centering devices l\ are located at opposite sides of themachine with their upper ends opposite the spaces formed between thefixed and the movable dies I and E said centering devices serving toproperly position the billets or blanks when placing the same inposition.

The press mechanism is located at the rear end of the machine andcomprises a fixed die P held in place by means of a set screw P Themovable die L is directed in its vertical movements by suitable guidesand is connected with the shaft L to be operated thereby. The uppersurface of the die P is preferably plain, whereas the lower side of thedie L is shaped to provide the horse shoe with the nail grooves orcreases and the nail openings. The blank or billet after being bent intothe shape of a horseshoe is moved to a position upon the die P by meansof the former G, the partly formed horseshoe being supported by means ofa bar or rib P located centrally above the die P. The shaft L isprovided with two cam projections O and O, which are adapted to engagethe upper ends of the levers M and K. A push bar K mounted in suitableguides is adapted to be engaged by the lower end of the lever K so as toproperly position the partly completed horseshoe upon the die P. Aspring mounted upon the push bar K transfers movement from the lever Kto said push bar, thereby preventing sudden movement of the push barwhich would tend to move the horseshoe too far forward upon the die P.After the horseshoe has been delivered upon the die P by means of theformer G the cam O engages with the upper end of the lever K and movesthe latter, thereby pressing the push bar K forward so as to move thehorseshoe upon the die to a position to be engaged by the movable die LThe second lever M has a latch h pivoted to its lower end, said latchbeing adapted to ride over the closed end of the horseshoe upon theforward movement of the lower end of the lever M and after the latchclears the horseshoe it drops so as to engage the same, whereby uponrearward movement of the lower end of the lever M the completedhorseshoe is removed from the machine. The lever M is adapted to beoperated by the cam O. The lever K is drawn rearward by means of aspring K and the lower end of the lever M is moved rearward by means ofa coil spring M In the operation of the machine power is applied to theshaft D and is transmitted therefrom to the several parts by the meansherein set forth. The billet-s or blanks Q, are cut from a bar of ironor steel into the required length. One of the billets is placed inposition between the dies I and E and is positioned by means of thecentering devices M The cams E coming in contact with the lower ends ofthe levers E press the same forward and operate the movable dies,thereby compressing end portions of the blank Q so as to diminish thewidth thereof and increase the thickness such as is required for theheel portions of a horseshoe. After the end portions of the blank havebeen reduced in width and increased in thickness the cross head G ismoved rearward, thereby bringing the former G in contact with the blankQ and forcing said blank between the fixed dies 1, thereby bending theblank. After the former has moved a given distance the cam G movesbetween the forward ends of the levers H and spreads such ends, therebycausing the rear ends of the levers to move inward and to press thefolded ends of the blank close against the sides of the former, the camportions of the part G being of such form as to insurethe rear ends ofthe levers H pressing the folded ends of the blank close against thesides of the former G The movement of the former Gr is such as to carrythe partly formed horseshoe over the die P and to depositthe samethereon. When the horseshoe clears the raised portion P it drops fromthe former Gr and is received upon the die P. The former Gr now returnsand at the same time the push bar K is advanced to properly position thehorseshoe upon the die P and an instant thereafter the movable die Ldescends and gives the final shape to the horseshoe and as the die Lascends the lower end of the lever M moves forward so as to carry thelatch M over the closed end of the horseshoe, after which the upper endof the lever M is released from the cam O and the spring M coming intoplay draws the lower end of the lever M rearward and removes thecompleted shoe from the machine.

As indicated most clearly in Figs. 4 and 5 the die L has adjust-ableconnection with a crank portion of the shaft L to admit of its relativevertical adjustment to properly position the working parts for formingthe nail openings and nail creases in the work. The connection embodiesa bearing 2, a block 3 and a right and a left hand threaded screw 4. Apin 5 connects the block 3 with the side members of the die L The block3 has a socket connection with the die L to admit of a slight movement,thereby preventing binding or undue strain upon the several parts of theconnection.

It is not-ed that the dies I serve in the dual capacity of compressingthe end portions of the billet Q. as well as bending said billet aboutthe former G When the billet is placed in position its end portions arecompressed between the dies I and E after which the former Gr isadvanced, thereby bending the billet about the former, after which thebent end portions of the billet are forced against the sides of theformer by means of the rollers at the ends of the shaping levers H. Theend portions of the shaping levers are in different planes, as indicatedmost clearly in Figs. 1 and 5, there by bringing the rear portionsthereof in the plane of the cam G, and their forward portions in theplane of the former G.

From the foregoing description, taken in connection with theaccompanying drawings, the advantages of the construction and of themethod of operation will be readily apparent to those skilled in the artto which the invention appertains, and while I have described theprinciple of operation of the invention, together with the device whichI now consider to be the embodiment thereof, I desire to have itunderstood that the device shown is merely illustrative, and that suchchanges may be made when desired as are within the scope of the claimsappended hereto.

Having thus described the invention what is claimed as new, is

1. In a horseshoe forming machine, the combination of a die forreceiving the blank after being bent into horseshoe form, mechanism forbending a billet into horseshoe shape, the same including a formerarranged to move the blank and deposit the same upon the beforementioneddie, a push bar arranged to move the horseshoe into proper positionafter being received upon the said die, and a movable die provided withmeans for forming nail grooves and nail openings in the horseshoe.

2. In a horseshoe forming machine, the combination of a die forreceiving the blank after being bent into horseshoe form, mechanism forbending a billet into horseshoe shape, the same including a formerarranged to move the blank and deposit the same upon the bcforementioneddie, a movable die provided with means for forming nail grooves and nailopenings in the horseshoe, a push bar arranged to move the horseshoeinto proper position after being received upon the said die, a lever foroperating the push bar, and a spring interposed between said lever andpush bar.

3. In a horseshoe forming machine, the combination of a die adapted toreceive the blank after being bent into horseshoe form, mechanism forbending the billet into the shape of a horseshoe including a formerarranged to deposit the horseshoe upon the beforementioned die, meansfor moving the horseshoe into proper position upon the die, a second diefor completing the finish of the horseshoe, and means for removing thefinished horseshoe from the die, the same including a reoiprocatorypivoted latch which rides over the horseshoe and engages therewith so asto remove the horseshoe from the machine upon movement of the latch inthe opposite direction.

In testimony whereof I affiX my signature in presence of two witnesses.

STANLEY MARTIN CRONE.

Witnesses:

E. E. DIEFENDERFER, A. P. SCHAADT.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. C.

